C.3.2 Directory and File Operation Built-ins

Two useful functions that are not in awk are chdir (so that an awk program can change its directory) and stat (so that an awk program can gather information about a file). This section implements these functions for gawk in an external extension library.

C.3.2.1 Using chdir and stat		What the new functions will do.
C.3.2.2 C Code for chdir and stat		The code for internal file operations.
C.3.2.3 Integrating the Extensions		How to use an external extension.